health
Tuesday, 21 December 2010
Monday, 20 December 2010
Public health
Public health is "the science and art of preventing disease, prolonging life and promoting health through the organised efforts and informed choices of society, organizations, public and private, communities and individuals." (Winslow, 1920). It is concerned with threats to the overall health of a community based on population health analysis. The population in question can be as small as a handful of people or as large as all the inhabitants of several continents (for instance, in the case of a pandemic). Public health has many sub-fields, but is typically divided into the categories of epidemiology, biostatistics and health services. Environmental, social and behavioral health, and occupational health, are also important fields in public health.
The focus of public health intervention is to prevent rather than treat a disease through surveillance of cases and the promotion of healthy behaviors. In addition to these activities, in many cases treating a disease can be vital to preventing it in others, such as during an outbreak of an infectious disease. Vaccination schedules and distribution of condoms are examples of public health measures.
Unlike clinical professionals, public health is more focused on entire populations rather than on individuals. Its aim is preventing from happening or re-occurring health problems by implementing educational programs, developing policies, administering services, and conducting research.
Public health also takes several actions to limit the health disparities between different areas of the country, continent or world. The great issue this system is trying to solve is the access of individuals to health care which has always been restricted for those who did not dispose of the necessary financial means. Other academic disciplines that are comprised by this field include maternal and child health, health services administration, global health, public health practice, public health policy and nutrition.
The great positive impact of public health programs is widely admitted. Because of the health policies and the actions public health professionals develop, the 20th century has registered a decrease of the mortality rates in infants and children and a constant increase in life expectancy. It is estimated that the life expectancy for Americans has increased by thirty years since 1900.
The focus of public health intervention is to prevent rather than treat a disease through surveillance of cases and the promotion of healthy behaviors. In addition to these activities, in many cases treating a disease can be vital to preventing it in others, such as during an outbreak of an infectious disease. Vaccination schedules and distribution of condoms are examples of public health measures.
Unlike clinical professionals, public health is more focused on entire populations rather than on individuals. Its aim is preventing from happening or re-occurring health problems by implementing educational programs, developing policies, administering services, and conducting research.
Public health also takes several actions to limit the health disparities between different areas of the country, continent or world. The great issue this system is trying to solve is the access of individuals to health care which has always been restricted for those who did not dispose of the necessary financial means. Other academic disciplines that are comprised by this field include maternal and child health, health services administration, global health, public health practice, public health policy and nutrition.
The great positive impact of public health programs is widely admitted. Because of the health policies and the actions public health professionals develop, the 20th century has registered a decrease of the mortality rates in infants and children and a constant increase in life expectancy. It is estimated that the life expectancy for Americans has increased by thirty years since 1900.
Health>>>>
Health is the general condition of a person in all aspects. It is also a level of functional and/or metabolic efficiency of an organism, often implicitly human.
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At the time of the creation of the World Health Organization (WHO), in 1948, health was defined as "a state of complete physical, mental, and social well-being and not merely the absence of disease or infirmity"Only a handful of publications have focused specifically on the definition of health and its evolution in the first 6 decades. Some of them highlight its lack of operational value and the problem created by use of the word "complete." Others declare the definition, which has not been modified since 1948, "simply a bad one.]
In 1986, the WHO, in the Ottawa Charter for Health Promotion, said that health is "a resource for everyday life, not the objective of living. Health is a positive concept emphasizing social and personal resources, as well as physical capacities." Classification systems such as the WHO Family of International Classifications (WHO-FIC), which is composed of the International Classification of Functioning, Disability, and Health (ICF) and the International Classification of Diseases (ICD) also define health.
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